From: Maxim Levitsky <maximlevitsky@gmail.com>
To: Philip Langdale <philipl@overt.org>
Cc: linux-mmc@vger.kernel.org, linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/2] mmc: fix mmc card disappearence on resume on ricoh mmc controllers
Date: Tue, 08 Jun 2010 11:57:46 +0300 [thread overview]
Message-ID: <1275987466.30596.13.camel@dell16> (raw)
In-Reply-To: <648846745cc9a3a023fa12f306caabf6@localhost>
On Sun, 2010-06-06 at 19:22 -0400, Philip Langdale wrote:
> On Mon, 7 Jun 2010 00:28:51 +0300, Maxim Levitsky
> <maximlevitsky@gmail.com> wrote:
> > The reason was that it takes time for controller to detect the card.
> > So wait a bit for the card to appear.
> > In worst case scenario, when you suspend the system with mmc card,
> > and actually remove it, the resume will be delayed maximum by 2 seconds
>
> I suspect it's probably sending an SD id command to the card and then that
> has to time out on MMC cards.
>
> Acked-by: Philip Langdale <philipl@overt.org>
Thanks!
Note that I spoke too soon about it being perfect
While mmc card that stays in slot now works fine, a card that is
inserted while system is asleep, is detected, but then controller
becomes confused, so card doesn't work. A reinsert does help though.
Overall I need to work around some unusual delays imposed by controller
due to unusual card detection.
I'll sort that out eventually (and hope not to bring much ugliness to
sdhci{,-pci}.c
I think I update this patch to address both issues.
Best regards,
Maxim Levitsky
next prev parent reply other threads:[~2010-06-08 8:57 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1275516180.30272.4.camel@maxim-laptop>
2010-06-03 1:16 ` [PATCH] mmc: make sdhci work with ricoh mmc controller Maxim Levitsky
2010-06-03 16:11 ` Philip Langdale
2010-06-03 16:31 ` Maxim Levitsky
2010-06-03 16:39 ` Philip Langdale
2010-06-03 17:05 ` Philip Langdale
2010-06-03 17:35 ` Maxim Levitsky
2010-06-04 4:42 ` Philip Langdale
2010-06-04 10:07 ` Maxim Levitsky
2010-06-04 15:05 ` Philip Langdale
2010-06-04 15:33 ` Maxim Levitsky
2010-06-06 21:24 ` Maxim Levitsky
2010-06-06 21:28 ` [PATCH 1/2] " Maxim Levitsky
2010-06-06 23:11 ` Philip Langdale
2010-06-07 0:37 ` Maxim Levitsky
2010-06-07 1:41 ` Philip Langdale
2010-06-11 19:08 ` [PATCH v3] " Maxim Levitsky
2010-06-11 19:15 ` [PATCH v4] " maximlevitsky
2010-06-13 11:29 ` Maxim Levitsky
2010-06-13 16:06 ` Philip Langdale
2010-06-06 21:28 ` [PATCH 2/2] mmc: fix mmc card disappearence on resume on ricoh mmc controllers Maxim Levitsky
2010-06-06 23:22 ` Philip Langdale
2010-06-08 8:57 ` Maxim Levitsky [this message]
2010-06-06 23:23 ` Chris Ball
2010-06-07 0:33 ` Maxim Levitsky
2010-06-07 5:47 ` Chris Ball
2010-06-08 8:52 ` Maxim Levitsky
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